WorksheetsMass to energy conversions + Half-lives
Total questions: 13
Worksheet time: 8mins
What is the disintegration energy if the mass change in a fusion reaction is 3.4x10^-23 kg?
3.06x10^-6
3.06x10^6
1.02x10^-14
1.02x10^14
What is the disintegration energy if the mass defect is 456 grams?
4.104x10^16 J
4.104x10^-16 J
4.104x10^19 J
4.104x10^-19 J
1.368x10^8 J
What is the disintegration energy if the mass defect is 2.66 amu?
3.97404x10^-10 J
2.394x10^17 J
3.97404x10^10 J
1.32468x10^-18 J
What is the disintegration energy if the mass defect is 1 amu?
1.494x10^-10 J
1.494x10^10 J
4.33x10^-6 J
4.33x10^6 J
If there are 340 grams of a substance and it's half-life is 23 years how many grams would be left after 92 years?
42.5 grams
85 grams
170 grams
340 grams
21.25 grams
If there are 340 grams of a substance and it's half-life is 23 years how many grams would be left after 46 years?
170 grams
85 grams
340 grams
42.5 grams
If there are 340 grams of a substance and it's half-life is 23 years what percent of the substance would there bve left after 5 half-lives?
50%
25%
12.5%
6.25%
3.125%
If there are 340 grams of a substance and it's half-life is 23 years what percent of the the sample would be left after 46 years?
50%
25%
12.5%
6.25%
If there are 340 grams of a substance and it's half-life is 23 years what percent of the the sample would be left after 23 years?
50%
25%
12.5%
6.25%
If there are 34 kilograms of a substance and it's half-life is 3 years what percent of the the sample would be left after 12 years?
50%
25%
12.5%
6.25%
3.125%
If there are 34 kilograms of a substance and it's half-life is 3 years how many kilograms would be left after 9 years?
34 kgs
17 kgs
8.5 kgs
4.25 kgs
2.125 kgs
If there are 34 kilograms of a substance and it's half-life is 3 years what percent of the substance would be left after 15 years?
50%
6.25%
25%
12.5%
3.125%
What would the disintegration energy be if 345 mg of a substance was defected from an atom?
3.105x10^13 J
3.105x10^-13 J
3.105x10^14
3.105x10^-14
